Haier MVAB009MV2AA User manual

SYJS-07-2017 REV.A Edition: 2017-07
MINI 4-way Cassette
Service Manual

CONTENTS
1. Feature....................................................................................................................................1
2. Specication............................................................................................................................2
3. Dimension ...............................................................................................................................5
4. Piping diagram ........................................................................................................................6
5. Wiring diagram........................................................................................................................7
6. Electric characteristics ............................................................................................................8
7. Air velocity and temperature distribution .................................................................................9
8. Sound pressure level ............................................................................................................11
9. Installation............................................................................................................................12
9.1 Parts and functions...........................................................................................................12
9.2 Safety ...............................................................................................................................13
9.3 Maintenance.....................................................................................................................15
9.4 Fault checkup ...................................................................................................................17
9.5 Installation procedures .....................................................................................................18
9.6 Electrical wiring ................................................................................................................23
10. PCB Photo .........................................................................................................................26
11. Dip switch setting ...............................................................................................................28
12. Indoor unit control ...............................................................................................................30
13. Failure code ........................................................................................................................32
14. Troubleshooting ..................................................................................................................33
15. Capacity ..............................................................................................................................40

1
1. Feature
• Compact design
• New panel design 620*620mm
• Low sound level

2
2. Specication
MVAB009MV2AA
Rated Cooling Capacity Btu/hr 9,000
Rated Heating Capacity Btu/hr 10,000
Voltage, Cycle, Phase V/Hz/- 208/230-60-1
Fan Speed Stages 3+Auto
Airow (High/Med/Low) CFM 700/590/480
Motor Speed (High/Med/Low) RPM 760/650/520
Indoor Sound Level dB (High/Med/Low) 32/30/29
Grill Model PB-620KB
Chassis Dimension: Height in (mm) 10 1/4 (260)
Chassis Dimension: Width in (mm) 22 7/16(570)
Chassis Dimension: Depth in (mm) 22 7/16(570)
Grill Dimension: Height in (mm) 2 3/8 (60)
Grill Dimension: Width in (mm) 24 7/16 (620)
Grill Dimension: Depth in (mm) 24 7/16 (620)
Weight (Ship/Net)- lbs (kg) 64.2/49.8 (29.1/22.6)
Connections Flare
Liquid O.D. in 1/4
Suction O.D. in 1/2
Drainpipe Size O.D. in 1 1/4
Internal Condensate Pump Standard
Max. Drain-Lift height in(mm) 27 1/2 (700)

3
MVAB012MV2AA
Rated Cooling Capacity Btu/hr 12,000
Rated Heating Capacity Btu/hr 13,500
Voltage, Cycle, Phase V/Hz/- 208/230-60-1
Fan Speed Stages 3+Auto
Airow (High/Med/Low) CFM 700/590/480
Motor Speed (High/Med/Low) RPM 760/650/520
Indoor Sound Level dB (High/Med/Low) 32/30/29
Grill Model PB-620KB
Chassis Dimension: Height in (mm) 10 1/4 (260)
Chassis Dimension: Width in (mm) 22 7/16(570)
Chassis Dimension: Depth in (mm) 22 7/16(570)
Grill Dimension: Height in (mm) 2 3/8 (60)
Grill Dimension: Width in (mm) 24 7/16 (620)
Grill Dimension: Depth in (mm) 24 7/16 (620)
Weight (Ship/Net)- lbs (kg) 68.6/54.2 (31.1/24.6)
Connections Flare
Liquid O.D. in 1/4
Suction O.D. in 1/2
Drainpipe Size O.D. in 1 1/4
Internal Condensate Pump Standard
Max. Drain-Lift height in(mm) 27 1/2 (700)

4
MVAB018MV2AA
Rated Cooling Capacity Btu/hr 19,000
Rated Heating Capacity Btu/hr 21,000
Voltage, Cycle, Phase V/Hz/- 208/230-60-1
Fan Speed Stages 3+Auto
Airow (High/Med/Low) CFM 700/590/480
Motor Speed (High/Med/Low) RPM 760/650/520
Indoor Sound Level dB (High/Med/Low) 33/30/29
Grill Model PB-620KB
Chassis Dimension: Height in (mm) 10 1/4 (260)
Chassis Dimension: Width in (mm) 22 7/16(570)
Chassis Dimension: Depth in (mm) 22 7/16(570)
Grill Dimension: Height in (mm) 2 3/8 (60)
Grill Dimension: Width in (mm) 24 7/16 (620)
Grill Dimension: Depth in (mm) 24 7/16 (620)
Weight (Ship/Net)- lbs (kg) 68.6/54.2 (31.1/24.6)
Connections Flare
Liquid O.D. in 1/4
Suction O.D. in 1/2
Drainpipe Size O.D. in 1 1/4
Internal Condensate Pump Standard
Max. Drain-Lift height in(mm) 27 1/2 (700)

5
3. Dimension
Unit: inch(mm)
.
.
.
.
.
.
.
.
.
.
.
7(176)
7 11/16(195)
22 13/16(580)
.1(25)
.
7 7/8(200) .
suspending
bolt
4-M8~M10
1
2
③
④
⑥
⑤
..
less than 1/2(10)
.
.
4-M3.2reserved hole
connect freh air inlet accessory Φ4(
100 )(direct installation)
.22 13/16 580（ ） .
greater than 39(1000)resreved space
less than 106(2700) to the wall
（installed at high place）
3 1/2(90)
3 1/2(90)
⑦
less than100
.
.
60
275
210
decoration board 24 7/16(620)
decoration board 24 7/16(620)
pipe connection
diagram
connect drain pipe
Indoor unt 22 7/16 570（ ）
Indoor unt 22 7/16 570（ ）
Ceiling open 23 1/4590（ ）
21 1/16(535)(gap betweensupending rods)
adjustable0-143/16(0-360)
2 3/8(60) 2 3/8(60)
12 1/4(310)
12 1/4(310)8 1/4(210)
6 3/4(170)
Part Name
connection port of gas pipe
connection of liquid pipe
wiring connection port of motor/pumping motor
connect drain pipe
inlet grill
outlet gril
SN
1
2
3
4
5
6
drain hose(accessory)
7
1 1/4(30)
1 1/4(30)
2 1/4(55)
5 1/2(140)5 1/2(140)
6 7/8(175)
7 1/8(180)
11 1/4(285)
2 3/8(60)
2 3/8(60)
6 7/8(175)
8 1/4(210)

6
4. Piping diagram
M
Fan
TC1
TC2
Indoor heat exchanger Gas pipe
(Flared joint) (Flared joint)
Liquid pipe
Filter EEV Filter
TA

7
5. Wiring diagram
Mini Cassette Wiring Diagram
0150525196
MAIN BOARD SW03
SW01
N
L
Y/R
BL(B)
BR(R)
T5A/250VAC
AC220V
LED5
PUMP
CN4
G B
M
CN22-1
CN22
CN16
CN21
CN31
CN31-1
CN46-1 CN46
CN34 CN23
CN13 CN14 CN24 CN27
CN36 CN26
CN41
PMV
Float switch
CN33
RK
WIFI
4
DC FAN
CN35 CN5
CN1
Tc1 Tc2 TA
2
2
RELAY
10
Display Board
Q
P A C
B
Wired Controller
3
Wire Controller
WHY G
CN38 CN17 CN20
CN11-1
CN11
CN7
RR
CN9 CN10
CN19 CN18
WHWHWH
RWH
R WH
WH
CN15
B
CN43 CN28
SST
TTL-PCPM2.5HUM
R
L-RXD
YWHB WH
R
485-PC
G
5
WH
CN8
WH
WHWH
BL WH
LED1
LED2
LED3
LED4
LED6
WH
Wire Controller With Indoor Unit Error Indicate Indoor Unit &Outdoor Unit
LED1、2 LED3、4
LED5
LED Definition
Colours: B:Black BL:Blue BR:Brown G:Green R:Red WH:White Y:Yellow
Symbol: Comm.add:communication address CC.add:Central Control address
Communication
With Outdoor
3
L-TXD
10
Swing4/1 Swing2/3
WH
B

8
6. Electric characteristics
Units Power supply
Indoor fan
motor
Power input (w)
Model Phase FQY Voltage
Volt.
range
MCA MFA
Output
(W)
FLA Cooling Heating
MVAB009MV2AA 1 50/60 220 198~242 0.325 1.04 26 0.26 17 17
MVAB012MV2AA 1 50/60 220 198~242 0.325 1.04 26 0.26 18 18
MVAB018MV2AA 1 50/60 220 198~242 0.325 1.04 26 0.26 35 35
Symbols:
MCA: Min. circuit amps (A)
MFA: Max. fuse amps of circuit breaker
Output: Fan motor rated output (w)
FLA: Full load amps (A)
Note:
1. Voltage range
The units are applicable for the electrical systems where voltage supplied to unit is in the range.
2. Maximum allowable voltage unbalance between phases is 2%.
3. MCA=1.25*FLA MFA≤4*FLA
4. Power supply uses the circuit breaker.